Motobecane 40 - Page 86

MOTOBECANE
TROUBLE
SHOOTING GUIDE
ENG I NE, CONT, D,
IX.
EXCESSIVE
FUEL
CONSUMPTION
A) Engine
is
not broken
in
(600
miles) ,
B) Carburetor choke
valve
partially
opened at all times
C) Carburetor
flooding
(sticky
float)
D) Leakage
in fuel line
X.
ENGINE HAS NO
POWER
Improper ignition timing
Clogged exhaust
port
or
pipe
Decompress i
on cable
adjusted too
tight
Fuel restri
cti on
hlorn out
piston
rings or engine seals
Engine
partially
sei
zed
Moped
chains adjusted
too tight
Brakes adjusted too tight
E ENGINE
I'IILL RUN
ONLY IF
THE CHOKE IS USED
Clogged
fuel
jet
in
carburetor
Clogged
fuel
line
Clogged fuel
filter
in carburetor or
gas
tank
Clogied
filter
cap vent
hole
Looi6 or cracked
inlet
pipe
and
gasket
:
\-l
Loose carburetor
XII.
ENGINE
I^IILL RUN BUT WON,T IDLE
Idle
circuit
in
carburetor cloqged
Throttle
slide
facing
wrong direction
in
carburetor
Idl e screw
not
adjusted comectly
Air leak
at carburetor or
inlet
pipe
mounts
XIII. ENGINE SEIZED OR STARTS KNOCKING
A) Insuff i
ci
ent oi
I i n fue'l mi
xture
B) Connect'ing
rod
looseness on crankshaft
C) Loose magnet
in
flywheel
D) Loose
flywheel
jammed
on stator
plate
E)
Pjston
seized to cylinder
A)
B)
c)
D)
E)
F)
G)
H)
XI. TH
A)
B)
c)
D)
E)
F)
A)
B)
c)
D)
I
RO 82
J